This discovery is significant as the team did not have direct access to any telescopes and did not include professional astronomers at the time of the discovery. The star was then precovered on photographic plates from the Palomar Sky Survey taken in 1951. So they reexamined the NEAT asteroid tracking data set and found this star. Teegarden's team thought that these dim stars might be found by data mining some of the huge optical sky survey data sets taken by various programs for other purposes in previous years. Teegarden's star showing proper motion at two year intervals.Īstronomers have long thought it was quite likely that many undiscovered dwarf stars exist within 20 light-years of Earth, because stellar-population surveys show the count of known nearby dwarf stars to be lower than otherwise expected and these stars are dim and easily overlooked. M-type red dwarf in the constellation AriesĬoordinates: 02 h 53 m 00.89133 s, +16° 52′ 52.6421″ Teegarden's Star
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